Re: [PATCH backport pre-4.9] powerpc/slb: Force a full SLB flush when we insert for a bad EA

From	Michael Ellerman <mpe@ellerman.id.au>
Newsgroups	linux.kernel
Subject	Re: [PATCH backport pre-4.9] powerpc/slb: Force a full SLB flush when we insert for a bad EA
Date	2017-06-28 03:50 +0200
Message-ID	<tXahb-i0-9@gated-at.bofh.it> (permalink)
References	<tWWxA-84J-17@gated-at.bofh.it> <tWWxA-84J-19@gated-at.bofh.it>
Organization	linux.* mail to news gateway

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Greg Kroah-Hartman <gregkh@linuxfoundation.org> writes:
> On Thu, Jun 22, 2017 at 04:52:51PM +1000, Michael Ellerman wrote:
>> The SLB miss handler calls slb_allocate_realmode() in order to create an
>> SLB entry for the faulting address. At the very start of that function
>> we check that the faulting Effective Address (EA) is less than
>> PGTABLE_RANGE (ignoring the region), ie. is it an address which could
>> possibly fit in the virtual address space.
...
>> ---
>>  arch/powerpc/mm/slb_low.S | 10 ++++++++++
>>  1 file changed, 10 insertions(+)
>> 
>> Note this patch is not upstream. The bug fix was fixed differently in
>> upstream prior to the bug being identified.
>
> Now applied to 4.4 and 3.18-stable kernels, thanks,

Thanks.

cheers

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Re: [PATCH backport pre-4.9] powerpc/slb: Force a full SLB flush  when we insert for a bad EA Greg Kroah-Hartman <gregkh@linuxfoundation.org> - 2017-06-27 13:10 +0200
  Re: [PATCH backport pre-4.9] powerpc/slb: Force a full SLB flush when we insert for a bad EA Michael Ellerman <mpe@ellerman.id.au> - 2017-06-28 03:50 +0200

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